In this chapter, we talked about creating and synchronizing goroutines as well as about creating and using pipelines and channels to allow goroutines to communicate with each other. Additionally, we developed two versions of the wc(1) utility that use goroutines to process their input files.
Make sure that you fully understand the concepts of this chapter before continuing with the next chapter because in the next chapter, we will talk about more advanced features related to goroutines and channels including shared memory, buffered channels, the select keyword, the GOMAXPROCS environment variable, and signal channels.